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questions
List of practice Questions
The ratio of isobaric volume expansivity and isothermal compressibility is given as:
BHU PET - 2019
BHU PET
Physics
Thermodynamics
During a quasi-static process:
BHU PET - 2019
BHU PET
Physics
Thermodynamics
Mathematical formulation of the first law contains the idea of:
BHU PET - 2019
BHU PET
Physics
Thermodynamics
One liter atmosphere equals:
BHU PET - 2019
BHU PET
Physics
Thermodynamics
At \( 4^\circ C \) for water, \( C_P = C_V \) because:
BHU PET - 2019
BHU PET
Physics
Thermodynamics
In the inversion curve for a gas, in the region of cooling:
BHU PET - 2019
BHU PET
Physics
Thermodynamics
At constant temperature, the internal energy of a Van der Waals gas:
BHU PET - 2019
BHU PET
Physics
Thermodynamics
Specific heat of saturated steam is:
BHU PET - 2019
BHU PET
Physics
Thermodynamics
If a black body radiation enclosure expands, so that its volume becomes 64 times, the temperature of the enclosure becomes:
BHU PET - 2019
BHU PET
Physics
Thermodynamics
In order to solve the differential equation $x \cos x \frac{d y}{d x}+y(x \sin x+\cos x)=1$ the integrating factor is:
BITSAT - 2019
BITSAT
Mathematics
General and Particular Solutions of a Differential Equation
Equation of two straight lines are $\frac{x-1}{2}=\frac{y-2}{3}=\frac{z-3}{4}$ and $\frac{x-4}{5}=\frac{y-1}{2}=z$ .Then
BITSAT - 2019
BITSAT
Mathematics
Straight lines
A bag contains
$2n$
coins out of which
$n-1$
are unfair with heads on both sides and the remaining are fair. One coin is picked from the bag at random and tossed. If the probability that head falls in the toss is
$\frac{41}{56}$
, then the number of unfair coins in the bag is
BITSAT - 2019
BITSAT
Mathematics
Probability
The equation of the curve passing through the point $\left(a, -\frac{1}{a}\right)$ and satisfying the differential equation $y-x \frac{dy}{dx}=a\left(y^{2}+\frac{dy}{dx}\right)$ is
BITSAT - 2019
BITSAT
Mathematics
General and Particular Solutions of a Differential Equation
If $a_{1}, a_{2}, a_{3}, \ldots, a_{n}$ are in A.P. where $a_{i}>0$ for all $i$, then $\frac{1}{\sqrt{a_{1}}+\sqrt{a_{2}}}+\frac{1}{\sqrt{a_{2}}+\sqrt{a_{3}}}+\ldots .+$ $\frac{1}{\sqrt{a_{n-1}}+\sqrt{a_{n}}}$ is?
BITSAT - 2019
BITSAT
Mathematics
Series
Consider $\frac{x}{2}+\frac{y}{4} \ge1,$ and $\frac{x}{3}+\frac{y}{4} \le1, x, y \ge0.$ Then number of possible solutions are :
BITSAT - 2019
BITSAT
Mathematics
graphical solution of linear inequalities in two variables
The locus of the mid-point of a chord of the circle $x^2+ y^2 = 4$, which subtends a right angle at the origin is
BITSAT - 2019
BITSAT
Mathematics
circle
Which one is classified as a condensation polymer?
BITSAT - 2019
BITSAT
Chemistry
Types of Polymerisation Reactions
Which of the following has zero net dipole moment?
BITSAT - 2019
BITSAT
Chemistry
Group 17 Elements
Mole fraction of the solute in a
$1.00$
molal aqueous solution is
BITSAT - 2019
BITSAT
Chemistry
Mole concept and Molar Masses
The angular speed of the electron in the $n^{th}$ orbit of Bohr hydrogen atom is
BITSAT - 2019
BITSAT
Chemistry
Bohr’s Model for Hydrogen Atom
The electronic configuration of
$Eu$
(Atomic
$No. 63$
),
$Gd$
(Atomic
$No. 64$
) and
$Tb$
(Atomic
$No. 65$
) are :
BITSAT - 2019
BITSAT
Chemistry
The Lanthanoids
Net cell reaction of
$Pt \left| H _{2}(640\, mm )\right| HCl \left| H _{2}(510\, mm )\right| Pt$
.
BITSAT - 2019
BITSAT
Chemistry
Electrochemical Cells
$aK _{2} Cr _{2} O _{7}+ bKCl + cH _{2} SO _{4} \longrightarrow xCrO _{2} Cl _{2}+ yKHSO _{4}+ zH _{2} O$
The above equation balances when
BITSAT - 2019
BITSAT
Chemistry
Balancing a redox reaction
Glycine in alkaline solution exists as______and migrates to__________.
BITSAT - 2019
BITSAT
Chemistry
Proteins
The time period of a satellite of earth is
$5$
hours. If the separation between the earth and the satellite is increased to
$4$
times the previous value, the new time period will become
BITSAT - 2019
BITSAT
Physics
Gravitation
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